[SCSI] megaraid_sas: add the IEEE SGE support to SAS2 controller
To increase the performance, megaraid sas driver added the IEEE SGE
support to support SAS2 controller.
Signed-off-by Bo Yang<bo.yang@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h
index 4c78cd3..a1fd44b 100644
--- a/drivers/scsi/megaraid/megaraid_sas.h
+++ b/drivers/scsi/megaraid/megaraid_sas.h
@@ -96,6 +96,7 @@
#define MFI_FRAME_DIR_WRITE 0x0008
#define MFI_FRAME_DIR_READ 0x0010
#define MFI_FRAME_DIR_BOTH 0x0018
+#define MFI_FRAME_IEEE 0x0020
/*
* Definition for cmd_status
@@ -732,10 +733,17 @@
} __attribute__ ((packed));
+struct megasas_sge_skinny {
+ u64 phys_addr;
+ u32 length;
+ u32 flag;
+} __packed;
+
union megasas_sgl {
struct megasas_sge32 sge32[1];
struct megasas_sge64 sge64[1];
+ struct megasas_sge_skinny sge_skinny[1];
} __attribute__ ((packed));
@@ -1210,6 +1218,7 @@
u8 flag;
u8 unload;
+ u8 flag_ieee;
unsigned long last_time;
struct timer_list io_completion_timer;